Lenovo Thinkpad E550 15.6" Intel Core i3 5th Gen Dual-Core 8GB RAM 256SSD Windows 10
ThinkPad E550 | Full-Function 15.6" Laptop for High Productivity Business Computing | Lenovo HK
ThinkPad Edge E550 (20DF0030US) Notebook Intel Corei5 5200U (2.20GHz) 4 GB Memory 500 GB HDD Intel HD Graphics 5500 15.6" Windows 7 Pro 64-Bit downgrade rights in Windows 8.1 Pro 64-Bit - Newegg.com
How to use Key to turn off Camera, Mute Microphone, Mute Volume in Lenovo - YouTube